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N. PETERS. PHOTO-LITHOGHPNER. WASHINGTON. D.

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.T O ALL WHOMAIT MAY CONCERN:

'HIRAM sgwIlLnr, 0F M- nDIsoN, INDIANA.

Laim Patent No. 77,151, daad Apre 21, 186e.

@te dntule maar in in 'time @anni @anni mit mating wat nf '115e anni.

l' y Be it known that I, -HIRAM'S WILEY,'of Madison, in thecounty ofJe`erson,'and State of Indiana, have invented a new andimproved-Stave-Jointer and I do'hereby declare thatthe following is afull, clear, and exact description thereof, which will enable othersskilled in the art to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

Figure 1 is a rear elevation. `Figure 2 is aground plan o`-- the same.

Figure 3 is a transverse section through theline a a', figs. 1 and 2.Figure 4 is a front elevation.- Similar letters of reference indicatevcorresponding parts.v The nature of this invention ensistsi First, inthe arrangement of a movable circular saw for jontn'g staves, which4traverses in adownward curve, corresponding with and conforming to thecurve' in the stave. E

The guides which conduct the saw forward land backward are true arcs oflcircles, and concentric with the driving-pulley overhead, sothat thebelt is always kept tight atany part of the travel o f the saw-framealong its guides. l i i Second, it consists in a slight lateral curvegiven to the saidguides, whereby a slight uniform curve is left in theedge of the stave, which adapts it more readily to the bilge requisiteina cask or barrel.

i Third, the arrangement of the curved guides, rtoothed racks, andtheconnections for producing the forward and backward movement of thelsawframe and saw, as hereinafter explained. i'

A is thegeneral frame of the machine. The saw, E, is set in bearingssecured to amovable bed or frame, '(Jl, which slides along upon thecurved guides, B B, these guides belng'circular arcs, and concentricwith the driving-pulley shaft, Bii, overhead, vas shown in iig.- 1, sothat the small pulley, H, will be kept 'always at the same distance fromthe driving-pulley, and consequently the belt will remain tight! Thesecurvedguides B B are made adjustable up or down, by being turned downvertically at their ends,"which are -secured'with screws into verticalslots made in the stanehions A A, forming part of the general frame 'ofthe machine.

A Underneaththevguides B B, and parallel to' them, are ltwo curvedtoothed racks, which are also concentric with the driving-pulley shaftabove. the machine,'s o that the pinion M, iig. 3, upon the shaft N,whichV rests in hanging bearings-d' which latter are secured to and forma part of the saw-bed, G, will engage the teethA on the racks C C, andthus Ymove the saw-bed forward and backward, according as the saidpinion is thrown into the upper or'lewer rack. y u l There isacranli-handle and small pulley, I, figs. 1 ande2, upon'the shaft Nofsaid pinion, so that the saw i can lbe operated backward and forwardby hand or power that drives' the saw.

` Toaccomplish this forward and'backward movement of the saw by means ofthe said toothed racks or ares O C, these racks or arcs are made to moveup and down upon vertical guide-reds z' z', which arerigidly secured inthe cross-pieces of the general frame A, and are` shown in idgs. 1,2,and 3.

The device for-raising and lowering these racks, and thus-moving the sawbuck and forth in the line of its work, consists of a system lof leversand links or vibrating-arms, shown athli, y g', mimz, which areconnected with the'treadle k by the plate n, having lugs to which thelevers m2 m2 are attached by pivots, thus receiving their motion fromthe attendants foot when placed uponthe treadle lc.

'When the treadlek is depressed, the outer ends of the levers m2 m2 areraised, as also the links or rods/IL Ii, and also their attached linksor rods g g', which latter strike or impinge upon the ends of the lowertoothed rack 0,'and as both racks are rigidly secured 'together at theirends by cross-bars, they are raised simultaneously, and when so raised,.the upper teeth of therack are disengaged from the-pinion, andthe lowerteeth areibroug'ht in contact and engage thender side of the pinion,which produces a reversed motionv in the saw-bed Gr. Thus -by raisingand lowering the toothed racks, a hackward'and forward motion oftranslation is produced, whereby the saw is made to saw through thelength of the stave, and return to its rst position, to again repeat thework an indefinite number of times, according as .the treadlc is raisedor depressed by the foot of the attendant. This operation is shownmainly in iigs. land 4.

To hold the stave or wood tobe sawed, two clamps are thrustupward by theaction ofthe sameI treadle, which clamps conine the stave against otherclamps insertedabovothem, and are made adjustable by means of nuts`which secure them to a bar running the whole length of the machine, andforming a part of the exterior frame A attached to the general frame A,.and shown mainly at iigs. 2 and 4. y l

The clamp-bar Z, iigs. 2 and 4, containing the shanks of the clamps, `Ilb b', bolted firmly through it, is secured at ,each end to thestanchions A A' of the general clamp-frame.l The lengths of the shanksof these clamps conform to the curve of the stave, being adjusted forthat purpose.

Directly underneath is a heavy bar or beam, A,iig. 4, which is a part ofth'e clamp-frame, and has holesin it, through which the lower movableclamps play, when operated by the treadle lc, thus moving up' and down.These movable clamps, r "rl, have longer Shanks, p p, which, passingthrough the holes in the bar A', are pivoted to levers m m, whichvibrate upon rigid pivots or centres o o attached to the bar A', andwhose opposite ends are connected with the plate n by means of shortlinks m1 m1, thus connecting the clamps with the treadle` k, and causingthe stave to be clamped and held for the forward or cutting-motion ofthe saw. 4 The' gauge J attached to the bar A.' is a device for gettingthe staves all of equal width.

The catch e, attached to the saw-bed Gr, serves to catch upon thecross-bar in figs. 2 and f1, and thus holds the same stationary, tillliberated bythe upward motion of the wiper f, passingthrough the guidea', and attached at its lower end to the lever g,'thus preventing thebreaking oi' the machine if the catch shouldnot be thrown o` by theattendant before the pinion was thrown in gear-with the lower toothedrack.

An inclined chute or yaproial), isplaced underneath the saw, to-receivethe saw-dust and strips cut oil, and deliver them out of the machine.' vl In operating this machine, the s tave is placed on the lower clamps,and the treadl'e pressed upon with the foot, which action clamps thestave securely, and throws the pinion in gear with the lower toothedrack, which moves the s'aw forward through lthe wood or stave. The footis then removed, and the pinion falls into gear-with the descendingtoothed rack, which carries thesaw back to its rst position. Anotherstave is clamped. So the operation is repeated indefinitely. v

The clamps for holding the stave have their clamping-faces inclined atan angle to the plane of the saw, which thus cuts the edge of the stavewith a suitable bevel for setting up into a cask or barrel'.

i The advantagesl of this invention consist in the simplicity of itsconstruction, and the combination of move-4 ments which insuresregularity, ease of operation, and uniformity of work, while it savestime, and admits of l being attended by less skilled operatives thanthose machines heretofore known orA used.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The curved guides B B, carrying the movable saw-frame G, said guidesbeing concentric with'the drivingshaft placed above the frame, wherebythe tension of the belt from said driving-shaft to the pulley H on thesaw carriage is regulated, as herein shown' and described for thepurpose specified.

2. The `combination of the movable curved racks C C with the pinion Mand the'movable saw-bed G, substantially in the manner herein shown and'described.

. 3. The devices m2 m2, m m, h h', g g, n, and 'the' treadle c,oroperating the curved racks C C, working' together, substantially asherein shown. y v

I 4. The clamps c c a, r r', and their connections m m, mY m, foroperating the same, as substantially set forth. n 5. The combinationofthecatch el and its wiper f withthe saw-bed and lifting-devices,substantially as herein shown and described.

HIRAM S. WILEY.

Witnesses:V

W. S. WYMoNn, l). E. TRIM.

